The Low Profile Lens are Panasonic's lowest profile option available. The Low Profile Lens also feature a step which allows customers to easily place a rubber O-ring for sealing the sensor from dust and water. The lens is designed to project 32 detection zones which detects up to 5 meters and has a field of view of 110 degrees in both vertical and horizontal directions. Please note that the sensitivity of passive infrared sensors is influenced by environmental conditions, so a performance evaluation test under representative conditions is always recommended.